Questions

Question 1

What chromosomes on a karyotype are considered autosomal?

Answer 1

The first 22 chromosomes.

Question 2

What is the genotypic ratio format?

Answer 2

The format to provide the probability of trait visibility often used in questions with the Punnett Square.

homozygous dominant: # heterozygous

Question 3

How can you know with absolute certainty on a pedigree that a gene in dominant?

Answer 3

If two parents carry the trait as well as all offspring.

Question 4

How can you tell using a pedigree that a trait is without a doubt recessive?

Answer 4

If two unaffected parents have a child that is affected.

Question 5

How do you format the Genotype Ratio?

Answer 5

Genotype ratios present all the available genotypr options and how many of each option there is.
Ex. 1DD:1Dd:1dd

Question 6

How do you format phenotype ratios?

Answer 6

Phenotype ratios use numbers and words.

Ex. 2 blue eye: 1 green:

Question 7

In biological ratios, what combo of numbers and letters represent generations?

Answer 7

P = parental
F^1 = filial 1

Question 8

Can Co-dominance and simple dominance be present at the same time?

Answer 8

In thw case of blood antigens, yes. Both A and B antigens are co-dominant to one another but dominant over o antigens.
Ex. Mom has A and dad has B, together they have AB, but if Dads side piece is O then their child would be B.